Adjustable nozzle



Patented Jan. 17, 1928.

UNITED s TATESPATENT OFFICE. y,

GEORGE BBOWNING, F WILMETTE, ILLINOIS, ABSIGNOB '10 CHICAGO FLEXIBLESHAFT COMPANY, OF CHICAGO, ILLINOIS, A 'COLPOBATION OF ILLINOIS.

ADJUSTABLE NOZZLE.

Application led June 22,

The purpose of this invention is to provide an improved form of nozzleparticularly adapted for use in lawn sprlnkles, and designed with a viewto economy of manufacture, and simplicity in adJustment. It consists ofcertain features and elements of construction as herein shown anddescribed, and as indicated in the claims.

In the drawings Figure 1 is a side elevation o'f a portable lawnsprinkler standard of the rotatmg arm type, fitted with twosimilarnozzles embodying this invention.

Figure 2 is a vertical medial section showing one of the nozzles asadjusted to throw a wide spray.

Fi ure 3 is alsoa medial section of the, nozz e showing a valve adjustedto throw a coarser stream.

While it may be understood that the features of this invention are notlimited to the nozzle used in a lawn sprinkler, I have chosen thisdevice for purposes of illustration, and in Figure 1, I have shownthesprinkler base, 1, upon which a hub, 2, is ro- 1 vtatively mounted withits rigid radial arms,

3, through which the water is conducted to the nozzles mounted int-hethreaded terminals, 4, of the arms. Each nozzle is attached b `means ofits threaded base nipple, 5, to w ich the upright inlet stem, 6, isscrewed The stem, 6, provides a lateral inlet for the water into thebarrel, 7, ata point between its ends and the barrel is bored throughfrom end to end. At the discharge end it is formed with an inturnediange, 8, through which the head, 9, of the valve member, 10, isslidably adjustable. Back of the head, 9, the valve member is reduced at11 to provide space for the water in the chamber, 12, of the barrel. Therear end of the barrel opposite the discharge end is counter-bored to aslightly larger diameter than the chamber, 12, and a retaining bushing,13, is forced into place against the shoulder, 14, so as to engage theiiange, 15, of the valve member to prevent the latter from being lostout of the. barrel. Preferably, a washer of packing material, 1G, is

inserted back of the bushing, 13, and a second bushing, 17, is forced into fill the re- 'maining length of the counter-bored portion.

The bushings, 13 and 17, are bored to lit snugly the stem of the valvemember, 10,

v19215. Serial No. 38,665.

and the rear end of said member is accessible for ad'ustment outside thebarrel, bein prefere ly provided with a knob, 18 whic may beApermanently attached, and orms a head for limiting the forwardl thrustposition of the valve member, as s own in Figure 2.

The rear or outer end of the bushing,

is counter-bored and threaded at 19 to ceive athreaded split bushing,20. The for. ward end of the ushing, 20, is tapered at 21, to co-o eratewith the inclined shoulder, 22, of the ushing, 17, so that as the part20 is screwed inwardly against the inclined shoulder, 22, its splitportion will be forced into clamping engagement with'the stem of thevalve member, 10, for holding it at any adjusted position. This clampinengagement may be effected by a artia turn ci? the knurled head, 23, ofthe ushing, 2G, or the valve may be released by a similar movement inthe opposite direction. Thus, the nozzle may be very quickly and easilyad- ]usted for throwing the desired form of spray or stream, since thevalve head, 9, may be set at any point in its range, merely by .alongitudinal sliding movement of the valve member, 10.

It will alsobe noted, that with the exception of the cast nozzle body,the parts are all simple cylindrical forms which may be cheaply and raidly produced on an automatic screw mac ine or the like, thus renderingthe construction economical to manu-4 facture.

I claim 1. In a nozzle thel combination of a barrel bored through fromend to end and provided with a lateral inlet intermediate its ends, avalve member having a portion adjacent one end of the barrel forcontrolling" discharge therefrom, and a portion accessible beyond theother end of the barrel for adjusting said member, said other end ofthepbarrel being counterbored to form a shoulder, a bushing fittedaround the `valve member against said shoulder, and a secondbushinginserted adjacent the first with packing material between said bushings,said second bushing being counterbored at its outer end and formed withan inclined shoulder at the inner end of the counterbore, and a splitbushingscrewed into the counterbore of they second bushing and having atapered end portion engaging the inclined shoulder, to- 1w gether withmeans on thesplit bushing outside the barrel for adjusting it to forcesaid tapered end ortion a ainst the inclined shoulder for c amping t evalve member to retain it in adjusted position.

2. In a nozzle in combination with a barrel having a bore extending fromend to end with a. dischar opening at one end and a transverse shou derintermediate the ends of the barrel, together with a lateral inletentering the barrel between the discharge opening and said shoulder, avalve-member hav-` ing a portion at oneend to co-operate with thedischarge opening, and a. stem portion in oounterbored at its outer 20

